Republicans and Democrats have become more polarized
The DW-Nominate data measures the voting patterns of senators. The chart specifically looks at the economic policy preferences of the average Republican and Democrat
0.6 (more conservative)
0.4
0.2
0.0
-0.2
-0.4 (more liberal)
1950
1970
1990
2010
2021
0.6 (more conservative)
0.4
0.2
0.0
-0.2
-0.4 (more liberal)
1950
1970
1990
2010
2021